Aaron J Gassmann

Summary

Affiliation: Iowa State University
Country: USA

Publications

  1. doi request reprint Resistance to Bt maize by western corn rootworm: insights from the laboratory and the field
    Aaron J Gassmann
    Department of Entomology, Iowa State University, Ames, IA 50011, United States Electronic address
    Curr Opin Insect Sci 15:111-5. 2016
  2. doi request reprint Evidence of Resistance to Cry34/35Ab1 Corn by Western Corn Rootworm (Coleoptera: Chrysomelidae): Root Injury in the Field and Larval Survival in Plant-Based Bioassays
    Aaron J Gassmann
    Department of Entomology, Iowa State University, Ames, IA 50011 Corresponding author, E mail
    J Econ Entomol 109:1872-80. 2016
  3. doi request reprint Western corn rootworm and Bt maize: challenges of pest resistance in the field
    Aaron J Gassmann
    Department of Entomology Iowa State University Ames, IA, USA
    GM Crops Food 3:235-44. 2012
  4. ncbi request reprint Effects of entomopathogenic nematodes on evolution of pink bollworm resistance to Bacillus thuringiensis toxin Cry1Ac
    Aaron J Gassmann
    Department of Entomology, Iowa State University, Ames, IA 50011, USA
    J Econ Entomol 105:994-1005. 2012
  5. pmc Field-evolved resistance to Bt maize by western corn rootworm
    Aaron J Gassmann
    Department of Entomology, Iowa State University, Ames, Iowa, United States of America
    PLoS ONE 6:e22629. 2011
  6. doi request reprint Field-evolved resistance to Bt maize by western corn rootworm: predictions from the laboratory and effects in the field
    Aaron J Gassmann
    Department of Entomology, Iowa State University, Ames, IA 50011, USA
    J Invertebr Pathol 110:287-93. 2012
  7. ncbi request reprint Effects of pink bollworm resistance to Bacillus thuringiensis on phenoloxidase activity and susceptibility to entomopathogenic nematodes
    Aaron J Gassmann
    Department of Entomology, University of Arizona, Tucson, AZ 85721, USA
    J Econ Entomol 102:1224-32. 2009
  8. doi request reprint Fitness costs of insect resistance to Bacillus thuringiensis
    Aaron J Gassmann
    Department of Entomology, Iowa State University, Ames, Iowa 50011, USA
    Annu Rev Entomol 54:147-63. 2009
  9. ncbi request reprint Effects of refuge contamination by transgenes on Bt resistance in pink bollworm (Lepidoptera: Gelechiidae)
    Shannon Heuberger
    Department of Entomology, University of Arizona, 410 Forbes Building, Tucson, AZ 85721, USA
    J Econ Entomol 101:504-14. 2008
  10. ncbi request reprint Interactions among Bt maize, entomopathogens, and rootworm species (Coleoptera: Chrysomelidae) in the field: effects on survival, yield, and root injury
    Jennifer L Petzold-Maxwell
    Iowa State University, Dept of Entomology, 13 Insectary, Ames, IA 50126, USA corrected
    J Econ Entomol 106:622-32. 2013

Collaborators

Detail Information

Publications35

  1. doi request reprint Resistance to Bt maize by western corn rootworm: insights from the laboratory and the field
    Aaron J Gassmann
    Department of Entomology, Iowa State University, Ames, IA 50011, United States Electronic address
    Curr Opin Insect Sci 15:111-5. 2016
    ..Factors likely contributing to resistance were the lack of a high dose of Bt toxin for maize targeting rootworm and minimal fitness costs of resistance. ..
  2. doi request reprint Evidence of Resistance to Cry34/35Ab1 Corn by Western Corn Rootworm (Coleoptera: Chrysomelidae): Root Injury in the Field and Larval Survival in Plant-Based Bioassays
    Aaron J Gassmann
    Department of Entomology, Iowa State University, Ames, IA 50011 Corresponding author, E mail
    J Econ Entomol 109:1872-80. 2016
    ..The use of more diversified management practices, in addition to insect resistance management, likely will be essential to sustain the viability of Bt corn for management of western corn rootworm. ..
  3. doi request reprint Western corn rootworm and Bt maize: challenges of pest resistance in the field
    Aaron J Gassmann
    Department of Entomology Iowa State University Ames, IA, USA
    GM Crops Food 3:235-44. 2012
    ..Effectively dealing with the challenge of field-evolved resistance to Bt maize by western corn rootworm will require better adherence to the principles of integrated pest management...
  4. ncbi request reprint Effects of entomopathogenic nematodes on evolution of pink bollworm resistance to Bacillus thuringiensis toxin Cry1Ac
    Aaron J Gassmann
    Department of Entomology, Iowa State University, Ames, IA 50011, USA
    J Econ Entomol 105:994-1005. 2012
    ..riobrave in the selection experiments. The experimental and modeling results suggest that entomopathogenic nematodes could slow the evolution of pest resistance to Bt crops, but only under some conditions...
  5. pmc Field-evolved resistance to Bt maize by western corn rootworm
    Aaron J Gassmann
    Department of Entomology, Iowa State University, Ames, Iowa, United States of America
    PLoS ONE 6:e22629. 2011
    ..However, the evolution of resistance could cut short these benefits. A primary pest targeted by Bt maize in the United States is the western corn rootworm Diabrotica virgifera virgifera (Coleoptera: Chrysomelidae)...
  6. doi request reprint Field-evolved resistance to Bt maize by western corn rootworm: predictions from the laboratory and effects in the field
    Aaron J Gassmann
    Department of Entomology, Iowa State University, Ames, IA 50011, USA
    J Invertebr Pathol 110:287-93. 2012
    ..These first cases of field-evolved resistance to Bt maize by western corn rootworm provide an early warning and point to the need to apply better integrated pest management practices when using Bt maize to manage western corn rootworm...
  7. ncbi request reprint Effects of pink bollworm resistance to Bacillus thuringiensis on phenoloxidase activity and susceptibility to entomopathogenic nematodes
    Aaron J Gassmann
    Department of Entomology, University of Arizona, Tucson, AZ 85721, USA
    J Econ Entomol 102:1224-32. 2009
    ..Incorporation of nematode-imposed fitness costs into a spatially explicit simulation model suggests that entomopathogenic nematodes in non-Bt refuges could delay resistance by pink bollworm to Bt cotton...
  8. doi request reprint Fitness costs of insect resistance to Bacillus thuringiensis
    Aaron J Gassmann
    Department of Entomology, Iowa State University, Ames, Iowa 50011, USA
    Annu Rev Entomol 54:147-63. 2009
    ..Because fitness costs vary with ecological conditions, refuges designed to increase the dominance or magnitude of fitness costs could be especially useful for delaying pest resistance...
  9. ncbi request reprint Effects of refuge contamination by transgenes on Bt resistance in pink bollworm (Lepidoptera: Gelechiidae)
    Shannon Heuberger
    Department of Entomology, University of Arizona, 410 Forbes Building, Tucson, AZ 85721, USA
    J Econ Entomol 101:504-14. 2008
    ..However, in hypothetical simulations where contamination conferred a selective advantage to rs over ss individuals in refuges, resistance evolution was accelerated...
  10. ncbi request reprint Interactions among Bt maize, entomopathogens, and rootworm species (Coleoptera: Chrysomelidae) in the field: effects on survival, yield, and root injury
    Jennifer L Petzold-Maxwell
    Iowa State University, Dept of Entomology, 13 Insectary, Ames, IA 50126, USA corrected
    J Econ Entomol 106:622-32. 2013
    ..In addition, this study also showed that the addition of entomopathogens to soil contributed to an overall increase in yield...
  11. ncbi request reprint Applying an integrated refuge to manage western corn rootworm (Coleoptera: Chrysomelidae): effects on survival, fitness, and selection pressure
    Jennifer L Petzold-Maxwell
    Department of Entomology, Iowa State University, 13 Insectary, Ames, IA 50011, USA
    J Econ Entomol 106:2195-207. 2013
    ..We found no differences in susceptibility of larval progeny to Bt maize in bioassays using progeny of adults collected from the four treatments...
  12. ncbi request reprint Effect of Bt maize and soil insecticides on yield, injury, and rootworm survival: implications for resistance management
    Jennifer L Petzold-Maxwell
    Department of Entomology, Iowa State University, 13 Insectary, Ames, IA 50011, USA
    J Econ Entomol 106:1941-51. 2013
    ..In addition, delays in emergence from Bt maize combined with insecticides could promote assortative mating among Bt-selected individuals, which may hasten resistance evolution...
  13. ncbi request reprint Effect of entomopathogenic nematodes on the fitness cost of resistance to Bt toxin crylac in pink bollworm (Lepidoptera: Gelechiidae)
    Aaron J Gassmann
    Department of Entomology, University of Arizona, Tucson, AZ 85721, USA
    J Econ Entomol 99:920-6. 2006
    ..Our results suggest that incorporation of entomopathogenic nematodes into an integrated resistance management strategy could help to delay pest resistance to Bt toxins...
  14. ncbi request reprint High-level resistance to Bacillus thuringiensis toxin crylac and cadherin genotype in pink bollworm
    Bruce E Tabashnik
    Department of Entomology, University of Arizona, Tucson, AZ 85721, USA
    J Econ Entomol 99:2125-31. 2006
    ....
  15. ncbi request reprint Effects of four nematode species on fitness costs of pink bollworm resistance to Bacillus thuringiensis toxin Cry1Ac
    Eugene R Hannon
    Department of Entomology, University of Arizona, Tucson, AZ 85721, USA
    J Econ Entomol 103:1821-31. 2010
    ....
  16. pmc Field-evolved resistance by western corn rootworm to multiple Bacillus thuringiensis toxins in transgenic maize
    Aaron J Gassmann
    Department of Entomology, Iowa State University, Ames, IA 50011
    Proc Natl Acad Sci U S A 111:5141-6. 2014
    ....
  17. doi request reprint Insect resistance to Bt crops: evidence versus theory
    Bruce E Tabashnik
    Department of Entomology, University of Arizona, Tucson, Arizona 85721, USA
    Nat Biotechnol 26:199-202. 2008
    ..The field outcomes documented with monitoring data are consistent with the theory underlying the refuge strategy, suggesting that refuges have helped to delay resistance...
  18. ncbi request reprint Adaptation by western corn rootworm (Coleoptera: Chrysomelidae) to Bt maize: inheritance, fitness costs, and feeding preference
    Jennifer L Petzold-Maxwell
    Department of Entomology, Iowa State University, Ames, IA 50011, USA
    J Econ Entomol 105:1407-18. 2012
    ..Larval feeding studies indicated that the susceptible and resistant strains did not differ in preference for Bt and non-Bt root tissue in choice assays...
  19. pmc Fitness cost of resistance to Bt cotton linked with increased gossypol content in pink bollworm larvae
    Jennifer L Williams
    Department of Entomology, University of Arizona, Tucson, Arizona, United States of America
    PLoS ONE 6:e21863. 2011
    ..These results suggest that increased accumulation of plant defensive chemicals may contribute to fitness costs associated with resistance to Bt toxins...
  20. doi request reprint Entomopathogenic fungi in cornfields and their potential to manage larval western corn rootworm Diabrotica virgifera virgifera
    Melissa L Rudeen
    Iowa State University, Department of Entomology, 110 Insectary Building, Ames, IA 50011, USA Electronic address
    J Invertebr Pathol 114:329-32. 2013
    ..3% and 55% Ā± 6.4% of soil samples, respectively. Subsequent laboratory bioassays found that some M. anisopliae s.l. strains collected from cornfields killed a greater proportion of D.v. virgifera larvae than a standard commercial strain...
  21. doi request reprint Effects of Cry34/35Ab1 corn on the survival andĀ development of western corn rootworm, Diabrotica virgifera virgifera
    Melissa L Rudeen
    Entomology Department, Iowa State University, Ames, IA, USA
    Pest Manag Sci 69:709-16. 2013
    ..The effects of Bt corn producing Cry34/35Ab1 (event DAS-59122-7) and entomopathogens on the survival and development of larval D. v. virgifera were examined in laboratory, field and greenhouse experiments...
  22. ncbi request reprint Effects of Rag1 on the preference and performance of soybean defoliators
    Robert F Bruner
    Iowa State University, Department of Entomology, Ames, IA 50011, USA
    J Econ Entomol 106:2577-84. 2013
    ..Evaluations of nutritional indices indicated that three species of Lepidoptera, S. frugiperda, H. zea, and A. gemmatalis, displayed reduced conversion efficiency for Rag1 soybeans, suggesting effects of antibiosis...
  23. doi request reprint Evolutionary analysis of herbivorous insects in natural and agricultural environments
    Aaron J Gassmann
    Department of Entomology, Iowa State University, Ames, IA, USA
    Pest Manag Sci 65:1174-81. 2009
    ..The application of omics technologies may allow for more efficient identification of factors that will impose ecological negative cross-resistance, thereby bolstering insect resistance management...
  24. ncbi request reprint Field-Based Assessment of Resistance to Bt Corn by Western Corn Rootworm (Coleoptera: Chrysomelidae)
    Ram B Shrestha
    Department of Entomology, Iowa State University, Ames, IA 50011
    J Econ Entomol . 2016
    ..Our results are discussed in terms of developing strategies for managing western corn rootworm with resistance to Cry3Bb1 and mCry3A, and delaying the additional evolution of Bt resistance by this pest...
  25. pmc Abundance of Soil-Borne Entomopathogenic Fungi in Organic and Conventional Fields in the Midwestern USA with an Emphasis on the Effect of Herbicides and Fungicides on Fungal Persistence
    Eric H Clifton
    Department of Entomology, Iowa State University, Ames, Iowa, United States of America
    PLoS ONE 10:e0133613. 2015
    ..Also, fungicides and herbicides may not be as toxic to soil-borne EPF as originally thought. ..
  26. ncbi request reprint Abundance and distribution of western and northern corn rootworm (Diabrotica spp.) and prevalence of rotation resistance in eastern Iowa
    Mike W Dunbar
    Iowa State University, Department of Entomology, 13 Insectary, Ames, IA 50011 6542, USA
    J Econ Entomol 106:168-80. 2013
    ..These data suggests that crop rotation remains a viable pest management strategy in eastern Iowa...
  27. doi request reprint Effects of Field History on Corn Root Injury and Adult Abundance of Northern and Western Corn Rootworm (Coleoptera: Chrysomelidae)
    Mike W Dunbar
    Department of Entomology, Iowa State University, Ames, IA 50011
    J Econ Entomol 109:2096-104. 2016
    ..These results suggest that greater cropping practice diversity can reduce management inputs for Diabrotica spp.; however, its effects on resistance evolution remain undetermined. ..
  28. pmc Broad-spectrum resistance to Bacillus thuringiensis toxins by western corn rootworm (Diabrotica virgifera virgifera)
    Siva R K Jakka
    Department of Entomology, Iowa State University, Ames, IA 50011, USA
    Sci Rep 6:27860. 2016
    ....
  29. doi request reprint Increased Risk of Insect Injury to Corn Following Rye Cover Crop
    Mike W Dunbar
    Department of Entomology, Iowa State University, Ames, IA 50011 and
    J Econ Entomol 109:1691-7. 2016
    ..Farmers planting corn following a rye cover crop should be aware of the potential for increased presence of true armyworm and for greater injury to corn. ..
  30. doi request reprint Effects of refuges on the evolution of resistance to transgenic corn by the western corn rootworm, Diabrotica virgifera virgifera LeConte
    Jennifer Deitloff
    Department of Entomology, Iowa State University, Ames, IA, USA
    Pest Manag Sci 72:190-8. 2016
    ..v. virgifera. However, previous studies have demonstrated the ability of this species to evolve resistance to Bt toxins in both laboratory and field settings...
  31. ncbi request reprint Effect of soybean varieties on survival and fecundity of western corn rootworm
    Mike W Dunbar
    Iowa State University, Department of Entomology, Ames, IA 50011, USA
    J Econ Entomol 105:625-31. 2012
    ..glycines did not appear to affect the fitness of D. v. virgifera. Thus, planting of these A. glycines-resistant soybean varieties should not directly affect the spread of rotation-resistant D. v. virgifera...
  32. ncbi request reprint Impacts of Rotation Schemes on Ground-Dwelling Beneficial Arthropods
    Mike W Dunbar
    Department of Entomology, Iowa State University, Ames, IA 50011
    Environ Entomol 45:1154-1160. 2016
    ..Increasing non-crop and perennial species within landscapes in conjunction with more diverse rotation schemes may increase the effect of biological control of pests by natural enemies...
  33. doi request reprint Effects of Pyramided Bt Corn and Blended Refuges on Western Corn Rootworm and Northern Corn Rootworm (Coleoptera: Chrysomelidae)
    Ryan S Keweshan
    Department of Entomology, Iowa State University, Ames, IA 50011 Current Address Department of Biology, Utah State University, Logan, UT 84321
    J Econ Entomol 108:720-9. 2015
    ....
  34. doi request reprint Inheritance and Fitness Costs of Resistance to Cry3Bb1 Corn by Western Corn Rootworm (Coleoptera: Chrysomelidae)
    David A Ingber
    Department of Entomology, Iowa State University, Ames, IA 50011 Current Address Department of Entomology and Wildlife Ecology, University of Delaware, Newark, DE 19716
    J Econ Entomol 108:2421-32. 2015
    ....
  35. ncbi request reprint Indirect cost of a defensive trait: variation in trichome type affects the natural enemies of herbivorous insects on Datura wrightii
    Aaron J Gassmann
    Department of Entomology, University of California, 3401 Watkins Drive, Riverside, CA 92521, USA
    Oecologia 144:62-71. 2005
    ....